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Canada can’t go green if oilsands are developed, report states

British researchers say three-quarters of Canada’s oil reserves and 85 per cent of its oilsands can’t be burned if we want to limit global warm

An oil worker holds raw sand bitumen from the oilsands near Fort McMurray. A British report says that three-quarters of all Canada’s oil reserves and 85 per cent of its oilsands can’t be burned if the world wants to limit global warming. (Jeff McIntosh / THE CANADIAN PRESS)

By Bob WeberThe Canadian Press

Wed., Jan. 7, 2015

British researchers have concluded that most of Canada’s oilsands will have to be left in the ground, if the world gets serious about climate change.

The report, published in the journal Nature, says three-quarters of all Canada’s oil reserves and 85 per cent of its oilsands can’t be burned if the world wants to limit global warming. The report also concludes that no country’s Arctic energy resources can be developed if global temperature increases are to be kept manageable.

It adds that about one-quarter of Canada’s natural gas reserves and four-fifths of its coal would also have to be left in the ground.

Report author Christophe McGlade of University College London says the research was undertaken in response to agreement from politicians around the world that overall global warming should be limited to within 2 C of historic averages. At the same time, said McGlade, most are enthusiastic boosters of their own country’s fossil fuels.

“Nearly all politicians across the world would like to develop all domestic sources of oil and gas and coal that they have and also search for new resources,” he said in an interview Wednesday.

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“What this analysis shows is that those two positions are inconsistent. Every country can’t exploit all of their domestic reserves and keep to two degrees.”

McGlade and co-author Peter Ekins used a mathematical model that accounted for all the world’s oil, natural gas and coal and analyzed demand for each type. They then looked at future demand to 2050, using a model to calculate how much of each resource would be used given constraints such as production costs and distribution.

They used the two-degree figure to provide a global cap on the amount of carbon that could be emitted into the atmosphere. The point at which their estimates of future demand intersected with the cap gave them the amount of how much each fossil fuel reserve could be developed.

“Our results suggest that, globally, a third of oil reserves, half of gas reserves and over 80 per cent of current coal reserves should remain unused,” the report says.

The study is the latest in a growing body of research into the implications of what is being called a “global carbon budget” — the total amount of carbon emissions that can be released and still stay below a two-degree increase.

The Intergovernmental Panel on Climate Change has placed that budget at 1,100 gigatonnes of carbon dioxide.

About two-thirds of that has already been used. Carbon dioxide locked in current fossil fuel reserves totals about three times that budget.

Other studies have looked into financial and political impacts of the carbon budget. Some have warned that energy companies risk stranding billions of dollars in assets if carbon is increasingly restricted or subject to financial penalty.

McGlade said he hopes his research will be used by world leaders when they meet next December in Paris to try again to hammer out an agreement on climate change. It could form the basis for talks on how countries could be compensated for resources left in the ground.

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